103. SBLAamELi.A. A^ i'leiostelicae. 199 



c. Intermedial leaves bounded by a pale or pellucid 

 margin consisting of sclerotic cells. 

 A Lateral leaves auricled on the upper side at 

 the base, the auricle spur-like, spreading or 

 inflexed. (190) S. plana, 



A A Lateral leaves not or hardly auricled on the 

 upper side at the base, and if so, the 

 auricle not spur-like, plicate. 

 Largest lateral leaves rounded or 

 rotundate-cuneate on the lower side at 

 the base. (191) S. fulvicaulis. 



QO Largest lateral leaves rotundate-truncate 

 to distinctly cordate on the loicer side 

 at the base. 



X Upper base of lateral leaves not 

 auriculate. (192) S. Pouzolziana. 

 XX Upper base of lateral leaves more 

 or less plicate-auriculate. 

 + Slightly plicate. 



(204) S. d'Urvillei. 

 +4- Conspicuously plicate. 



(193) S. plicata. 



C.C. Intermedial leaves not pale- or pellucid-margined. 



d. Intermedial leaves of ultimate branchlets 



rotundate-cuneate to cordate on the outer 



side at the base. Shoots springing from a 



scandent, 5 — 8-stelical main stem. 



(194) S. muricata. 

 d.d. Intermedial leaves of ultimate branchlets 

 cuneate and decurrent on the outer side at 

 the base, or the main stem 8-stelical. 

 e. Macrospores rugose, rugulose or reticu- 

 late. (195) S. Schlechteri. 

 e.e. Macrospores smooth, prickly or verrucose- 

 tuberculate. 



f. Largest lateral leaves more or less 

 plicate or auriculate on tfie upper 

 side at the base. 



